Finding the Third Proportional to 2,398.88 and 3,505.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.88 : 3,505.88 = 3,505.88 : x
2. Step 2: Convert to fraction form
   2,398.88/3,505.88 = 3,505.88/x
3. Step 3: Cross multiply
   2,398.88x = 3,505.88 × 3,505.88
4. Step 4: Simplify right side
   2,398.88x = 12,291,159.52
5. Step 5: Solve for x
   x = 12,291,159.52/2,398.88
6. Step 6: Final answer
   x = 5,123.72